Granted Patent
Utility
US 6,778,635 · App. 10/043,393
X-ray tube cooling system
Inventor:
John E. Richardson
Patented Case
View Patent ↗
Granted: Aug 17, 2004
Filed: Jan 10, 2002
Inventor
John E. Richardson
Assignee (at issue)
VARIAN MEDICAL SYSTEMS, INC.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.